OK I have 03MCS with the following mods installed before i bought it:

- Air diverter alta
- 15% pulley
- 2% Crank
- Exhaust (header cat flex catback)
- Cam (its lopey so it must be there lol)
- LARGER injectors (Size dont remember)
*** Suposedly it has had tuning to go with it and was described as 240hp range. However acording to this dyno i must not have any tuning and those injectors must be adding to my pig rich problem *** I would expect much more for this HP***
*** Also my tuner was talking to me about the APEXI AFR doo hicky to tune basicly the fule and hit the timming a bit since it follows the same map. Any knowledge on this anyone? My other choice is Unichip
heres the dyno and AFR.
AFR

HP TQ


As you can see My AFR takes a faceplant 4500-Redline also it only reads down to 10.0 so its bad at high RPMs.
Is it possible theres a flash done to stock ECU but it re learned? My ol Focus did crap like re learning around timing controllers and whatnots. Learnign the Mini week 2 so be gentle.

Any Help or guidance would be much valued.

 

Ok Shameless Bump with Question disguise.

It is aparrent i need tuning and im hoping someone with exp or know how will chime in. Im torn between an Apexi AFC or Unichip
** Note my tuner has the ability to tune the UInichip on dyno ** No mailing required. Also he can tune the Apexi unit for cheaper plus the unit is cheaper but im shooting for 250-300hp possible mercedes super or replace super for a turbo or just stock super. Help im drowning in newbness

 

if its the car im thinking of, ebay buy, that thing should be WAY better then those #'s. plus you have a cam and head in your sig, do you know whos they were? BIG differences in some of those heads!

I would say go with the unichip,(out of those two options) but I havent heard much about their custom tunes and cant claim one way or the other but.........cheap is cheap for a reason

btw, you are about to be hit with REAL questions like intake temps, outside temps, humidity, etc, etc! Don at dmh will prompt you to go here:
http://www.dmhmotorsports.net/DynoRacing.html

but there are many different tuners that could get you up and screaming how you should. just do some searches. good luck.

 

Are you hoping for 250wheel horsepower or 250 at the crank? I'm running 234whp and about 265hp at the crank. Also my car is one of the more powerful ones that is running a stock supercharger, no turbo and no nitrous.
Your car needs to be leaned out on the top end, I would find someone in your area that can tune your car with a custom flash on a dyno. An Apexi or Unichip would be my last resort.
Good luck
M

 

Are you sure your car has a head installed?? If so, it's in desperate need of some tuning, and will benefit greatly from it!

If your car has all of the mods you list in your sig, it should be pretty well modded out...the only thing that would seem to be lacking is tuning. I'd try to find someone that can do a custom dyno tune. The Apexi AFC is also an option and will allow you to tune the a/f ratios specifically.

 

but a custom tune would REALLY be better wouldnt it!?!

 

This looks like a lot of the cars that come in for repairs/tuning. Step one , check your boost pressure. The 15%/2% combo doesn't equal 17%. Your boost may be spiking to 20psi or over. When this happens the ecu pulls timing and adds a bunch of fuel in a desperate attempt at self preservation. The only injectors that I have found to work correctly in the Mini are the stock injectors and the JCW ones. This is not to say that there aren't any other injectors that will work. There are a ton of injectors that would be acceptable if there was some way to compensate them in the software. Check your fuel trims. If they are in an acceptable range, no codes is a good indication, then the injectors are probably not the problem. Get to the root of the problem first. Don't just treat the symptoms with more add ons. Once all your parts issues are fixed, pm me about an ecu tune. Good luck.

 

Holy messed up fuel curve!

If I were you, I'd get some stock injectors and a reflash from the dealer. There are way too many of these cars safely running the stock programming for extended safe periods to neglect it.

 

Absolutely. While there are several "can" tunes out there (GIAC, MTH, ect....) nothing will be superior to a custom tune. At the Dragon, LDG demonstrated that the "can" tune (in my case GIAC) made improvements but minimal. My car is not 100% yet John found 8hp over the Giac. He felt there was more work to do tune wise once I sort out my problems.

Clearly find a tuner with the right equipment and MINI ecu experienced.

 

Thanks guys for info ill try to help you help me so to speak.

Ok im going to ask the prior owner some questions mainly pertaining to the following:

- ECU Work done and was there a chip?
-Injector size?
- Head or no head?
- Ill let him know what it was pushing at dyno and about the rich fuel (I can see carbon buildup at the tip of exhaust
- He thought this car was pushing 250hp he never dynoed said he would easily eat 350z's.
- Actually ill get back to this after i talk to the guy

My questions to you all:
- My tuner is MINI friendly and can tune the UNI chip I heard normally it is bought with a canned program so to speak. Does this change things as a last resort since it will be custom to my car?
- im going to order at least the dual gauge pod mabye 4 gauge for the stearing wheel cluster: what are most important to momnitor on this? boost,EGT,OIL? I like a clean cockpit but some of this is essential.
plus up to the 4 guage pod looks really clean in this car the one that surround the tach.
- Would a stock tune make the fuel look like that with larger injectors?
- Im gunna go reset my ECU just to do it.


PS -Updated sig off what i know

 

I run:
1-boost
2-wideband
3-oil temp
4-oil pressure

EGT would be nice too, but having either EGT or a wideband is nearly as good.

 

Looks to me like just about every MINI out there that has not been tuned...You stand to make a ton of power at the top end if you can get that leaned out a bit...

 

My prior owner originally lived in tampa about 58 yrs old. Im starting to wonder if I was the reciepient of a dealer flash. Theres no mini dealer here just the cert preowned bmw dealer and reg BMW dealer. Anyways mabye you know him. the mini is Elec Blu w/ black roof.

Ya so im thinking get that fuel curve to level off at 12.1 wonder what that would net me. my tuner thinks the apexi would be most cost efficient cause stock maps seem good. I just dont like the idea of timing sharing the same map as the fuel. Reminds me of adjusting timming on DOHC vs SOHC.

I need to tap into boost for sure cause what if its spiking but wouldnt the HP/TQ curves jerk from it.

Lastly standing near a Supercharged min hood up with intake and parts on it while on the dyno really hurts the ears. As in i just drove a steak through the heart of a wailing banshee as screams into a megaphone.

 

I found a post on ECU reflash you made a while back. I know of the new solution all fords have i wish the mini had it. Im all about getting custom done on the dyno though so im wondering if i will do better to get the unichip and have it tuned by my tuner on the dyno. Also i keep wanting to steer clear of the apexi unit as a solution. i really dislike the timing sharing the fuel map.

 

Wholy crap i just realized yiou originally did the work on my MINI you are the tuner im sure of it if you want ill PM you the name. I really hope its you.

**EDIT** I was told by the original owner that Walis motor sport did the work on my mini in tampa

 

Sorry silkworm, but when you guys say custom tuning do you mean with a Unichip or are you guys talking something totally different? Please explain as I live in Australia and have a very heavily modded Cooper s 04.

 

Basicly im talking about a unichip custom burned for my car and its mods. Not through mail but right there at the dyno. Im trying to clarify this as well im new to the mini scene. Id love to be able to flash the stock ecu maps as that would be the best. Im guessing second best would be Unichip with custom tune, 3rd best apexi. my guess anyhow.

 

Pat Wallis of Wallis Motorsport is likely the one who did it if it was from this area.

Pat is da man, he did my first pulley and installed my head (and taught me more or less how to do the cam, and take apart the MINIs valve train...

 

yup thats him. If yo have the number can you send me in PM cause I wonder if he had the ECU flashed originally or if it had a chip or sumthin. Mabye he can look up what was done to this car i dunno.

 

I had mine on the rollers Tues. Your HP & TQ numbers are only about 8 higher than mine. My fuel map took a dive like yours, but it never got under 10.

I'm stock ECU, injectors, exhaust/header, DMM intake, 15% pulley, coil, wires, IK22

Hmm, sounds like the seller was over estimating a little.


If you have someone that can tune the UniChip, go that route. I have seen big differences in cars when properly tuned. Make sure that you get a newer model though. Q or newer preferably. They are easier to tune, therefore better results.

 

Ya the guy who ran the dyno has been tunning with unichip for a while and actually get deals on em according to him.

Talked to Pat Wallis today he said my curve is normal (fuel) but however im making less than I should be as he is the original tuner for my vehicle. he thinks i should be up in the 185 -190's with what the car has in it. so he is suggesting to check if im getting belt slippage and/or is my crank pully loose where im not getting full speed out of accessories belt. He is thinking mabye im not reaching my full boost potential.

OK, I can get to the bolt with a wrench so ill see if i can tighten it any. It doesnt seem to be slipping at the belt I dont see any signs or what id think would look like slippage.

SO ya it has intake/cam/full miltek exhaust/pulleys 15% & 2%.

 

Using a hand wrench i tighetened the crank pulley as best as possible. Oh and I realized putting it in gear might help lol. I got it as tight as possible without stripping it.

Is there a way to tighten the belt? Is it fairly easy?

 

The belt has a spring loaded tensioner, so no you can't tighten it. You may want to try replacing your belt, their only about 20$, It may of stretched. -- Johan

 

Well I tightened the pulley and it seems puncheir like torqey didnt really get to butt dyno good.

 

I go thru a belt about once a year. Ive tried them all and no other belt is any better than another. i dont know if im alone in this boat but i change mine every year or less....always have a few spares layin around.